Potassium Bicarbonate → 3-(4-Bromo-3-methylphenyl)-5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazole

HRID 1096141노트

반응식

HRID 1096141 반응식
[Cl:1][C:2]1[CH:3]=[C:4]([C:9]([C:11]([F:14])([F:13])[F:12])=[CH2:10])[CH:5]=[C:6]([Cl:8])[CH:7]=1.[Br:15][C:16]1[CH:24]=[CH:23][C:19]([CH:20]=[N:21][OH:22])=[C:18](Cl)[C:17]=1[CH3:26].C(=O)([O-])O.[K+]>O1CCCC1>[Br:15][C:16]1[CH:24]=[CH:23][C:19]([C:20]2[CH2:10][C:9]([C:4]3[CH:3]=[C:2]([Cl:1])[CH:7]=[C:6]([Cl:8])[CH:5]=3)([C:11]([F:14])([F:12])[F:13])[O:22][N:21]=2)=[CH:18][C:17]=1[CH3:26]

참가 물질

5

반응물 3

HCID 516893Potassium BicarbonateHCID 231598231,3-Dichloro-5-(3,3,3-trifluoroprop-1-en-2-yl)benzeneHCID 866584614-Bromo-chloro-3-methylbenzaldoxime

생성물 1

HCID 231598123-(4-Bromo-3-methylphenyl)-5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydroisoxazole수율 90.5%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

In a solution of 22.7 g of 3,5-dichloro-1-(1-trifluoromethylethenyl)benzene produced in Step 1 of Synthetic Example 3 and 26.0 g of 4-bromo-chloro-3-methylbenzaldoxime in 120 ml of tetrahydrofuran, 15.7 g of potassium hydrogen carbonate was added, and stirred under reflux with heat for 5 hours. After the completion of the reaction, the reaction mixture was left and cooled to room temperature, insoluble material was filtered off, then the solvent was distilled off under reduced pressure. 150 ml of water was added in the residue, stirred at room temperature for 18 hours, and precipitated crystal was filtered off and dried to obtain 38.6 g of the aimed product as white crystal. Melting point 105.0 to 108.0° C.

후처리

  1. temperatureunder reflux
  2. temperaturewith heat for 5 hours
  3. customAfter the completion of the reaction
  4. waitthe reaction mixture was left
  5. filtrationinsoluble material was filtered off
  6. distillationthe solvent was distilled off under reduced pressure
  7. addition150 ml of water was added in the residue
  8. stirringstirred at room temperature for 18 hours
  9. customprecipitated crystal
  10. filtrationwas filtered off
  11. customdried

출처 및 근거

ORD 기록
ord-b469d2f67c3c4a9eaef65b20344e0157
출처 데이터셋
uspto-grants-2012_03
특허 번호
US08138213B2

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